gpio.h

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/*
 * Copyright (c) 2019 Piotr Mienkowski
 * Copyright (c) 2018 Linaro Limited
 *
 * SPDX-License-Identifier: Apache-2.0
 */
#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_GPIO_H_
#define ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_GPIO_H_
 
#define GPIO_ACTIVE_LOW         (1 << 0)
#define GPIO_ACTIVE_HIGH        (0 << 0)
 
/* Configures GPIO output in single-ended mode (open drain or open source). */
#define GPIO_SINGLE_ENDED       (1 << 1)
/* Configures GPIO output in push-pull mode */
#define GPIO_PUSH_PULL          (0 << 1)
 
/* Indicates single ended open drain mode (wired AND). */
#define GPIO_LINE_OPEN_DRAIN    (1 << 2)
/* Indicates single ended open source mode (wired OR). */
#define GPIO_LINE_OPEN_SOURCE   (0 << 2)
 
#define GPIO_OPEN_DRAIN         (GPIO_SINGLE_ENDED | GPIO_LINE_OPEN_DRAIN)
#define GPIO_OPEN_SOURCE        (GPIO_SINGLE_ENDED | GPIO_LINE_OPEN_SOURCE)
 
#define GPIO_PULL_UP            (1 << 4)
 
#define GPIO_PULL_DOWN          (1 << 5)
 
#define GPIO_VOLTAGE_POS        6
#define GPIO_VOLTAGE_MASK       (3U << GPIO_VOLTAGE_POS)
#define GPIO_VOLTAGE_DEFAULT    (0U << GPIO_VOLTAGE_POS)
#define GPIO_VOLTAGE_1P8        (1U << GPIO_VOLTAGE_POS)
#define GPIO_VOLTAGE_3P3        (2U << GPIO_VOLTAGE_POS)
#define GPIO_VOLTAGE_5P0        (3U << GPIO_VOLTAGE_POS)
 
#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_GPIO_GPIO_H_ */